19561971

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{45599}}^1$

素因数の和:45626

約数の個数: 16

約数和(自身を含む): 30643200

約数和(自身を除く): 11081229

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 45599, 136797, 501589, 592787, 1504767, 1778361, 6520657, 19561971]

約数ペア:

[(1, 19561971), (3, 6520657), (11, 1778361), (13, 1504767), (33, 592787), (39, 501589), (143, 136797), (429, 45599)]